/*
 * Copyright 2019-2020 by Nedim Sabic Sabic
 * https://www.fibratus.io
 * All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package object

import (
	"fmt"
	"github.com/rabbitstack/fibratus/pkg/syscall/handle"
	"unsafe"
)

var ntQueryMutant = nt.NewProc("NtQueryMutant")

type MutantInformationClass uint8

const (
	MutantBasicInfo MutantInformationClass = iota
)

// QueryMutant gets mutant detalied information according to the information class.
func QueryMutant(handle handle.Handle, klass MutantInformationClass, buf []byte) error {
	status, _, _ := ntQueryMutant.Call(
		uintptr(handle),
		uintptr(klass),
		uintptr(unsafe.Pointer(&buf[0])),
		uintptr(len(buf)),
		0,
	)
	if status != 0 {
		return fmt.Errorf("NtQueryMutant failed with status code 0x%X", status)
	}
	return nil
}
